reading from a zip file, error

Im trying to read a file from a zip file using the following method:

Code:

---

public void readZipFiles(String filename)
    {
        try
        {
            byte[] buf = new byte[1024];
            ZipInputStream zipinputstream = null;
            ZipEntry zipentry;
            zipinputstream = new ZipInputStream(
                new FileInputStream(filename));

            zipentry = zipinputstream.getNextEntry();
            while (zipentry != null)
            {
                //for each entry to be extracted
                String entryName = zipentry.getName();
                System.out.println("File ::"+entryName);
                RandomAccessFile  rf;
                File newFile = new File(entryName);
                String directory = newFile.getParent();
                if(directory == null)
                {
                    if(newFile.isDirectory())
                        break;
                }
                System.out.println("d" );
                rf = new RandomAccessFile(entryName,"r");             
                System.out.println("e" );
                String line;

                if ((line =rf.readLine()) !=null)
                {
                    System.out.println(line);
                }

                rf.close();
                zipinputstream.closeEntry();
                zipentry = zipinputstream.getNextEntry();

            }//while

            zipinputstream.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }

---

but just after System.out.println("d" ); I get an error?

File:: jav_4250.pdf
a
b
c
d
java.io.FileNotFoundException: jav_4250.pdf

but why is it not found if it just got it from the zip?

The file is still in the ZIP file. once you find the zipentry you want, you have to go through the process of extracting that file so you can use it. Or if you dont want to extract it you would simply get the inputstream of the particular entry from the Zipfile Object.